CoroCoro includes teaser for 2016 Pokémon movie
This month's issue of CoroCoro includes an image of the teaser for next year's movie.
The image depicts a silhouette of an unknown Pokémon, accompanied by the caption "!? Is this a New Pokémon?!" It is not clear at this time whether it is a new Mega Evolution, new alternate form, new Pokémon, or something else entirely.
This image is from the teaser shown at the end of the 18th Pokémon movie, which will officially premiere in Japan on July 18, 2015 (although it had pre-screenings on July 5).